(HP-65) Prog. No. 04198A Reverse Osmosis

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Extract from Aircraft Industry Wastewater Recycling, EPA-600/2-78-130 (1978/06), Appendix D: Calculator Program for Computing Reverse Osmosis Unit Product and Concentrate Concentrations, pgs 69-71

     "The general problem of calculating concentrate concentration and permeate concentration in an unit employing feedback is best solved by a reiterative technique. Such calculation is time consuming unless a computer or programmable calculator is available. This appendix contains a 99-step program devised for use on a Hewlett-Packard HP-65 calculator, that reiterates the necessary calculations until two successive results differ by less than one part in 1000".

Program Description Description, Equations, Variables
Calculation Steps
Operating Limits and Warnings
Sample Problem
Reference
Program {listing}

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